window.addEventListener('load',function() {
	$('#belajar_matematika').click(function(){
		localStorage.setItem("estudia_course", "matematika");
		window.location.href = '2-option_courses.html';
	});	
	
	$('#belajar_fisika').click(function(){
		localStorage.setItem("estudia_course", "fisika");
		window.location.href = '2-option_courses.html';
	});
	
	$('#belajar_biologi').click(function(){
		localStorage.setItem("estudia_course", "biologi");
		window.location.href = '2-option_courses.html';
	});	
});